Mayfield triumphs in Australia's NSW Ports Crown immunity challenge
By Sean Maguire and Saloni Sinha ( May 6, 2026, 08:06 GMT | Insight) -- Mayfield Development has won its challenge to derivative Crown immunity, with Australia’s top court ruling that national competition laws may apply to NSW Ports’ contracts with the New South Wales government. The High Court of Australia's judgment clears Mayfield's competition law case to proceed against NSW Ports. However, the court declined to issue a broader ruling endorsed by Australia's competitive watchdog that competition laws generally displace derivative Crown immunity for private companies in dealings with the government.Mayfield Development has won its challenge to derivative Crown immunity, with Australia’s top court ruling that national competition laws may apply to NSW Ports’ contracts with the New South Wales government....
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